166.26% is the change from 243 to 647
Calculation steps:
[( 647 - 243 ) ÷ 243] x 100 = 166.26%
Formula
Percentage change = [(647 - 243) / 243] x 100
Subtract the new number by the original number
647 - 243 = 404
404 ÷ 243 = 1.662551440329218
1.662551440329218 x 100 = 166.26%